Power over HD Coax Coming 2017

By: Brian Rhodes, Published on Jan 14, 2016

One of the big installation benefits of IP cameras has been Power over Ethernet (PoE). Instead of using one cable for video and another for power, a single cable can be used and power transformers can be eliminated.

Recently, HD analog has become a major counter trend against IP. However, one thing HD analog, like SD analog, lacks is power over coaxial.

Now, TVI is poised to solve this. In this note, we break down the offering and its impact on competitive positioning.

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Undisclosed Integrator #2

....but a detriment to those selling IP.... but a benefit to an analog client who may not be able to afford upgrading to IP but may now do a partial upgrade to TVI as a cheaper alternative. Resulting in smaller but much easier and more plentiful sales.

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Paul Meltzer

It's been my experience Hikvision TVI cameras require more power than conventional analog. I assisted a dealer with an installation and we got around 650' using a new (if I recollect correctly) 24VAC PS in the closet with the recorder. (18 awg power cable). Excellent picture quality compared to what they had before. I am curious how a coax typically at 20 awg center conductor would perform. Has Hikvision redesigned their TVI to require less power?

IP is here to stay but there is a market for TVI and it is an affordable alternative for some.

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George van de Nadort

Last year TVI was at the IFSEC London together with FUHO and they promote a system called CCHDTV wich had power over coax R59. CCHDTV didn't make it so I think they are trying use is for something else. What I can remember they could send an HDTV signal and power (between 12 and 48 vdc 2amp max) over 300 meters with an signal damping loss of -39db.

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Mark Jones

Not sure what the real benefit is. HD is touted as a competitive upgrade alternative to IP, particularly if you already have existing coax. As long as the cable is viable, why would anyone bother to re-pull existing coax? Doesn't that add to the overall cost of the job = eliminating the benefit of using HD in the first place?

I do realize that there are many that sell HD for new installs. I just think there is some intellectual dishonesty going on..just a tad anyway.

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Undisclosed Manufacturer #3

But for new installs there is a lot to be said about running CAT5 and using baluns. Because the cabling is cheaper. It's often flood wired already into new buildings (depending on your location) and you can do power over it at the same time.

There is the whole argument about which cabling type is easier to learn to terminate and pull and cost of tools from scratch for both types.

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Undisclosed #1

The additional 12 - 24 VDC power supply would also add expense over 'power over coax' systems. A 16-output CCTV power supply costs ~$130... This cost is avoided when power is built-in to a 'power over coax' recorder.

POE switches typically cost significantly more than non for the same number of ports. Although you mention that the price of powered TVI is unknown, do you think the power supply cost can be avoided altogether?

One other small benefit: Manufacturers could add remote power on/off cycle capability

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Undisclosed Integrator #6

Could one use UTP Cable, Baluns and remaining unused conductors to transport power instead of coax? I've used "PoE Power Over Ethernet Injector Splitter Cable Kit" for Non POE IP Cameras that transfers power over unused pair(s), so perhaps use these w/ baluns?

What if you took a 33MP Axis camera covering one of the busiest parks in the US and ran Amazon Facial Recognition against it?
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